@deepthot,
Hey Rich, awesome points. It IS difficult to get down and start identifying greater existence. However, here are a few points with which to start. The only way to discover these points is to reasonably discuss with other people, get some differing viewpoints, and try to find an objective solution. I still find this better then a subjective viewpoint, as the problems you have stated with this attempted objective viewpoint, apply to the subjective. Unfortunately, the subjective could only supply a true moral ethics through luck, while an objective attempt at least has more stability and reason on its side. What do you think of these proposals?
1. Total existence.
This would be the number of actual existences, or things which can interact in total. A differing existence, is that, when taken as a whole, will interact differently with objects, then another whole. In basic, a lawnmower is a different existence then a hairdryer. Each have very specifically different sets of interactions. A little more in depth, Lawnmower 1 is different then lawnmower 2 due to different atomic makeup, even though their the same model.
2. Potential existence
This is what the current existence can potentially interact as. If there was an existence isolated from all other existence forever, this would be considered worse then an existence with the ability to interact with 5 other existences. This is because the interaction with a different existence, creates an active existence at that moment, the differing interaction then the existence as simply self-existing.
These two basic ideas are where an established measuring tool can begin. I'll demonstrate how. (Get ready, long, look at TLDR for inspiration to read it. =P)
An incredibly strong submarine, manned by ten people, has sunk to the bottom of the ocean. The stresses of the submarine are holding up against the outside, the problem is, there is only enough oxygen left for ten people for one hour. You are one of those people. You could easily kill the other people and live for ten hours. Further, as the submarine is at the bottom of the ocean, it will soon be destroyed and all evidence of what happened under water will never be seen by anyone. Which is more moral, for you to kill the other people and live for ten hours, or to let the other people live and live for one hour, or kill yourself, and let the other nine people live for longer than an hour?
This scenario demonstrates a perfect example of existential morality. There is no one to witness your murder. We could even go further and ensure that if you killed the others, there would be no pain for them. You could go further and state the nine WANT you to kill them. They will be happy dieing, and you will be happy living. There are no witnesses, there will be no guilt. Your conscience will be completely free from your actions. Even if all of these things occur, and all subjective objections are eliminated, I will demonstrate it is still wrong to kill those 9 other people.
The complexities of humanity are too numerous to address. However, we can simplify the problem with the assumption that there are equivalancies as well as variables in existence. First, we'll assume that every single human on the boat is worth equivalent existence. Perhaps there might be a variation here and there due to different factors, but within the existence of a human as a whole, this slight variations of existence are negligible.
With humans equaling equivalent existence, we can translate each human into a number. In the most simple case I can think of, each human will represent a dot within the submarine. The walls and air of the submarine are constants in both the murderer and the living cases. There are two variables then. The number of dots in an hour, and the actions those dots can make in an hour.
This allows us to calculate the relative existence. Existence can be calculated as a function of time. One existence over ten hours is ten existence, or "Ex" for short. Ten existences over one hour would be 10 ex as well. As we can see, if we simply calculated the existence of the dots without regards to their actions, it would be no more or less moral for one dot to exist for ten hours over ten dots existing for one hour. 10 dots*1 hour=10ex 1 dot*10 hours=10ex.
Now however, we must address the actions of the dots. Making this as simple as possible, each dot can interact with one other dot. We'll say this interaction is a simple touch. If each dot touches another within that hour, then ten more existences are produced. It is obvious that these existences are not the same equivalency to the existences of the dots, but we'll see why this is o.k.
Now let us take the lone dot in the room for ten hours. We'll say when another dot is "killed" it can no longer be interacted with (Demonstrating the loss of live interaction) There is no dot for the lone dot to touch. As such, the most interaction the lone dot can take is zero in their 10 hours. The most interaction the 10 dots could take in one hour is 10. At this point, if even one of the 10 dots "touches" another dot, it would be more existence for the ten to exist, then the lone dot. The relevant existence of the touching means it is better if there are ten dots in a room together for one hour versus one lone dot in a room for ten hours.
Let us go further with this idea. We have only looked at relative actual existence, not relative potential existence. Let us say each dot has the potential to touch another within that hour. Further, potential existence includes which particular dot another dot touches. There are many possibilities that arise from this. In fact, in that hour, the potential existence would be, 10! (10X9X8...), or 3,628,800 potential touches between all ten dots. If we take the lone dot, the relative potential existence is...zero.
From this then, it would seem it is better to have 10 dots in a room for one hour then 1 dot in a room for 1 hour. In fact, the one dot would have to live long enough to fulfill the actual and potential existence of the ten dots existing for one hour before the lone dot could be equivalent existence.
Anyway you look at it, that's longer then ten hours for the lone dot, and in the end, it would always be immoral for the lone dot to kill the other 9 dots. From this very simple model, we have learned we can utilize relative existence, both potentially and actually. However, there is a very severe problem with this model.
How can we compare the worth of existence between the existence of the dots themselves, their actions, and their potential existence? These concerns are only important if we are trying to find equivlency between different measurements of existence. If I was trying to discover which was more existence, 30 units of an action versus 5,000,000 potential actions, I'm not quite sure how to compare the two.
Fortunately, the submarine example does not require this consideration. We discover that the dots existences are the same, yet the actions and potential actions of the ten dots existing for an hour are greater than the one dot existing for ten hours. As we are not trying to find an equivalence between the two sets of dots, but simply which creates more total existence, we have the answer that the ten dots existing for one hour would be more existence then the one dot existing for one hour.
How well does this dot problem translate into a submarine full of people? Simply translate the "touching" into conversing. The end result is the same. Yet people do more then talk. They think, they feel, they breath. All of these things dissappear once they are dead. As such, the immorality of killing 9 others, would seem to be an incredible loss for the slight gain of an hour. Even the sacrifice of one person so the others can survive slightly longer is wrong. The potential existence drops from 3,628,800 (10!)to slightly more then (9!) 36,288. As at the least the existence of the people remaining does not increase, it would be better for the dot to live the hour with everyone else, at least to ensure a greater potential existence.
With this, we see that a moral issues can be claimed in mathematical terms, an objective standing. At least in very basic circumstances, this can be an objective tool which allows us to state, "This is wrong," or, "This is right." Further, the mathematical morality seems to follow our moral intuitions, while furthering why we feel this way at an intellectual level.
TLDR: The proposal of an existential morality allows the proposal of objective mathematical calculations for particular moral instances.